Specifications include, but are not limited to: 5.1.Commencement of Work on Site 5.1.1. Unless CMHA agrees otherwise in writing, the Construction Stage will commence with CMHA issuing the Notice to Proceed and will terminate upon CMHA issuing a Certificate of Contract Completion to the Contractor. The Certificate of Contract Completion will be issued in accordance with the requirements of the Contract Documents and will not occur until after CMHA issues a Certificate of Substantial Completion, a Certificate of Occupancy is issued for the Project, and the Contractor has completed all items on the punch list delivered to Contractor by CMHA as provided in Article IX. The time period for Contract Completion in provided in Section 9.8. 5.1.2. Notice to Proceed: A. The Contractor shall begin work upon the date indicated in a written Notice to Proceed from CMHA or its designee. i. The Contractor shall not begin work prior to receiving such notice. B. Typically, the Notice to Proceed shall be issued within 180 days of CMHA Board of Commissioner Approval. C. If the Notice to Proceed is not issued with 180 days of CMHA Board of Commissioner Approval, CMHA may, in its sole discretion, terminate the Contract without recourse from the Contractor. 5.2.Environmental Controls 5.2.1. The Contractor shall protect its Work and materials from damage from water, moisture, and other weather, including damage from water run-off from other property or structures, and damage from heat, cold, and humidity. 5.2.2. Contractor is not authorized to use permanent HVAC system without express written authorization from CMHA. 5.2.3. Until the permanent HVAC system is complete and available for use: A. The Contractor shall make arrangements and pay for installation and maintenance of temporary heating, cooling and ventilating systems; and B. The Contractor shall pay the costs incurred in operating the temporary heating, cooling and ventilating systems. 5.2.4. When the permanent HVAC system is complete and available for use: A. The Contractor shall start up and maintain operation of the permanent HVAC system, including filters, and promptly remove temporary heating, cooling and ventilating systems. B. If the Project consists entirely of new construction, the Contractor shall pay the costs of energy consumed in operating the permanent HVAC system until Substantial Completion. 5.2.5. From the date of Substantial Completion, CMHA shall pay the cost of operating the permanent HVAC system for the occupied portion of the Project. 5.2.6. Use of the permanent HVAC system during construction shall not change, modify or reduce the Contractor’s warranty and service obligations under the Contract Documents. 5.3.Construction Procedures 5.3.1. The Contractor is solely responsible for and has control over all construction means, methods, techniques, sequences, and procedures, for safety precautions and programs in connection with the Work, and for coordinating all portions of the Work. 5.3.2. If the Contract Documents give instructions that affect construction means, methods, manners, techniques, sequences, or procedures, the Contractor shall evaluate the jobsite safety of them and, except as expressly stated herein, be fully and solely responsible for the jobsite safety of the means, manners, methods, techniques, sequences, or procedures. 5.3.3. If the Contractor determines that the means, methods, manners, techniques, sequences, or procedures specified in the Contract Documents may not be safe, the Contractor shall give timely written notice to CMHA.